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10-04-2011, 04:10 PM   #1
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What lens is best for K-5?

Hey everyone! My K-5 is arriving tomorrow finally! :-)
I am extremely excited about the portraits that will come out of this thing, and I was wondering which lens I should get first. I will be using them for portraits mainly, but general photography as well.

Pentax 70mm 2.4
Sigma 50mm 1.4

in the category of zooms:

Sigma 24-70 macro 2.8
Tamron 28-75 2.8

thanks!

10-04-2011, 04:18 PM   #2
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Portraiture is best accommodated by fast primes. You can always zoom with your feet.
So Pentax's DA 70 Ltd is a good choice, but for faster options there is the Pentax FA 77 f/1.8 Limited and the Pentax FA* 85 f/1.4 (if money is not too much an issue). On a budget, the FA 50 f/1.4 is a very good value-for-money choice, and the best zoom for portraiture IMO is the Tamron 28-75.

All the best in your choice.
10-04-2011, 04:19 PM   #3
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For portraits I would take a look at the sigma 85mm:
Sigma 85mm F1.4 HSM - Review

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10-04-2011, 04:21 PM   #4
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I have a Sigma 30/1.4 which I love. Superb Quality lens. I've seen pics from the Wigma 85/1.4 too and want one!!

base4d upon that I would imagine the 50/1.4 is great too. Narrow DOF from something like f/1.4 really gives a pic something. :



I also have a pentax A 50/1.2 which I would never part with

10-04-2011, 04:24 PM   #5
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IMHO, the FA77 Limited is one of the best portrait lenses available. Since I don't have the DA70 I really can't comment on it. I'm also very pleased with how the FA50 1:1.4 and FA 43 Limited perform on the K-5.

As far as zooms are concerned, I've had very good results with my Sigma 70-200 HSM II for close-up portrait shooting.
10-04-2011, 04:44 PM   #6
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Sent you a PM, Nick.
10-04-2011, 04:46 PM   #7
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*Forgot to specify that money was an issue
LOL
My price range is less than 550, but thank you for your recommendations! Any suggestions now that I have clarified?
10-04-2011, 04:53 PM   #8
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The tamron is a great general purpose zoom, and it takes very nice portraits. You could then pick up the fa50 1.4, the samyang 85 1.4 or my favorite portrait lens the Helios 44-2 58mm f2.0. A combo like that will run less than one sigma 85mm by as much as half.

10-04-2011, 04:54 PM   #9
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QuoteOriginally posted by nick52 Quote
*Forgot to specify that money was an issue
LOL
My price range is less than 550, but thank you for your recommendations! Any suggestions now that I have clarified?
See my PM.
10-04-2011, 06:02 PM   #10
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QuoteOriginally posted by nick52 Quote
Hey everyone! My K-5 is arriving tomorrow finally! :-)
I am extremely excited about the portraits that will come out of this thing, and I was wondering which lens I should get first. I will be using them for portraits mainly, but general photography as well.

Pentax 70mm 2.4
Sigma 50mm 1.4

in the category of zooms:

Sigma 24-70 macro 2.8
Tamron 28-75 2.8

thanks!
If you're shooting general as well as portraits, Sigma 50mm 1.4 will probably suit you better. I had one of those. Pretty big, heavy lens for a 50mm prime. But it's very sharp and bokeh is smooth. I ended up selling it because mine happened to have some front focusing issues. I currently own the 70mm f2.4. It's much smaller and lighter, it's also a very sharp lens. However, if you want to play with DOF more, notice the difference in max aperture. The 70mm prime just works. Good focus, consistent results.

I can't comment too much about the Sigma 24-70 since I have no experience with one. The Tamron, which I had and sold, has a useful range, but I noticed the FF issue yet again. May be it's my luck with third party lenses.
10-04-2011, 07:54 PM   #11
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i'd get the tamron 28-75 and use the leftover money on some lighting gear (yongnuo flash, stand, umbrella)
that way, you get the most flexibility to shoot portraits right away, since you'd have a sharp lens with a very useful portrait zoom range along with a light for more control over your lighting.
10-04-2011, 11:08 PM   #12
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QuoteOriginally posted by Adam Quote
For portraits I would take a look at the sigma 85mm:
Sigma 85mm F1.4 HSM - Review
No doubt that Pentax lenses are the best for a Pentax camera because they are targeted designed and made for optimal results in that combination!
Third party lenses are still and will remain only third party...
In this particular case, the difference in price is worth it if not only because that the Sigma is monstrously huge compared to the Pentax lens, but, wether it is a 70mm or a 77mm, also the weight regardless the Pentax's all metal construction.
So, allow me to advise the Pentax lens for your Pentax camera...
10-05-2011, 11:39 PM   #13
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I have a new K5 and FA 31 Ltd. After 1300 shots in a few weeks, i am hooked to this combination and have only used the kit lens once(1 shot). You may need a medium telephoto for portrait.

All the best!
Enjoy photography!

Last edited by Bestzoom; 10-06-2011 at 01:29 AM.
10-06-2011, 04:52 PM   #14
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I just got the Pentax A 50mm 1.7 and it is now my favorite lens! I will probably buy the Tamron farther down the road.
Thanks everyone!
10-06-2011, 05:29 PM   #15
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Post some shots from your new gear. If I can say anything about the pentax forum, I think it is true that its membership enjoys seeing the fruits of the "what should I buy thread..."
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